Tactile sensor using piezoelectric resonator

Maezawa, Miyuki; Imahashi, T.; Kuroda, Yoshihiro; Adachi, Hiroyuki; Yanagisawa, Kenji

doi:10.1109/sensor.1997.613596

Cited by 23 publications

(12 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In most cases, piezoelectric resonant-type sensors based on the inverse piezoelectric effect have been used for static measurement applications. The piezoelectric resonant sensor detects the change of the resonance conditions of a piezoelectric material induced by external stimuli [38][39][40][41][42][43][44][45][46]. This sensor also requires the voltage source to oscillate the resonator at a specific frequency [47][48][49].…”

Section: Static Force Measurement Using Piezoelectric Sensorsmentioning

confidence: 99%

Static Force Measurement Using Piezoelectric Sensors

Kim

Jiang

et al. 2021

Journal of Sensors

View full text Add to dashboard Cite

In force measurement applications, a piezoelectric force sensor is one of the most popular sensors due to its advantages of low cost, linear response, and high sensitivity. Piezoelectric sensors effectively convert dynamic forces to electrical signals by the direct piezoelectric effect, but their use has been limited in measuring static forces due to the easily neutralized surface charge. To overcome this shortcoming, several static (either pure static or quasistatic) force sensing techniques using piezoelectric materials have been developed utilizing several unique parameters rather than just the surface charge produced by an applied force. The parameters for static force measurement include the resonance frequency, electrical impedance, decay time constant, and capacitance. In this review, we discuss the detailed mechanism of these piezoelectric-type, static force sensing methods that use more than the direct piezoelectric effect. We also highlight the challenges and potentials of each method for static force sensing applications.

show abstract

Section: Static Force Measurement Using Piezoelectric Sensorsmentioning

confidence: 99%

Static Force Measurement Using Piezoelectric Sensors

Kim

Jiang

et al. 2021

Journal of Sensors

View full text Add to dashboard Cite

show abstract

“…This type of sensor has been used in many applications, including the detection of cancer, the measurement of eye pressure, evaluation of human ovum in fertility studies, and evaluation of the properties of the skin. [22][23][24][25][26] The theory behind such sensors is based on the physics of oscillating rods; indeed, their behavior can be described using the wave theory of vibration modes of a finite rod. The change in the resonance frequency of such a rod is related to the acoustic impedance of the object with which it is in contact 27,28 Df = À n 0 2pl…”

Section: Piezoelectric Resonance Sensorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A review of force and resonance sensors used in the clinical study of tissue properties

Yousuf

Asiyanbola

2013

Proc Inst Mech Eng H

View full text Add to dashboard Cite

Tactile sensing is commonly carried out by humans using their fingers or hands to estimate the physical properties of an object. A large body of literature covers a range of applications of these methods in clinical situations. The objective of this work is to show the breadth of application areas explored and the achievements that have been made in the measurement of physical variables of interest to physicians using tactile force and resonance sensors. Although a broad spectrum of applications has been considered, of particular interest is the application of these methods to determine tissue properties in vivo. Progress in this direction has been made by various groups particularly with respect to piezoelectric and capacitance sensors. Also described are the findings of a preliminary study of a tactile system designed to examine the abdomen of the clinically super-obese patient.

show abstract

“…The sensors are easily arranged in an arrayed manner during fabrication if one needs a 2-D contact force distribution of the objects. In the resonant mode, the sensor detects the elasticity of the contacted object by using the change in resonance characteristics [9]. However, these previous works only focused on the detection of a single physical value (contact force or elasticity).…”

Section: Introductionmentioning

confidence: 99%

Impact Resilience Measurement of Elastic Materials by using Active Tactile Sensor

Hasegawa

Shikida

Sato

2006

2006 IEEE International Symposium on MicroNanoMechanical and Human Science

View full text Add to dashboard Cite

This paper proposes an active tactile sensor driven by using piezo-electrical actuator. It consists of a silicon diaphragm having piezoresistive strain sensors for measuring displacement of the diaphragm, and a piezoelectric actuator for driving the sensing element. The proposed active tactile sensor has an advantage in that it can detect the multiple physical values, elasticity and impact resilience of a contact object, by analyzing the obtained step-response waveform. We fabricated the sensor element by using Micro-Electro-Mechanical-Systems (MEMS) technologies, and assembled it with a commercially available piezoelectric actuator in hybrid manners to produce the active tactile sensor. The sensor was 15 mm x 15 mm x 20 mm. Six different rubbers of different hardness ranging from A30 to A70 in Shore A, was used to evaluate the elasticity detection function of the sensor, and we confirmed that the output increased linearly with the increase in the rubber hardness (elasticity). We also evaluated two different rubber materials, urethane and damping rubbers, which had different values of impact resilience, and found that step responses of the sensor output were quite different between two (the damping rubber showed overshooting phenomena at the rise). We therefore concluded that the proposed sensor is capable of detecting two values, elasticity and impact resilience, of a contact object.

show abstract

Tactile sensor using piezoelectric resonator

Cited by 23 publications

References 1 publication

Static Force Measurement Using Piezoelectric Sensors

Static Force Measurement Using Piezoelectric Sensors

A review of force and resonance sensors used in the clinical study of tissue properties

Impact Resilience Measurement of Elastic Materials by using Active Tactile Sensor

Contact Info

Product

Resources

About